针对现实环境中突发性灾难发生时通信基础设施易遭到破坏的问题，在综合分析蓝牙和 ZigBee 无线网络特点的基础上，文中提出了一种基于突发性灾难环境的蓝牙/ ZigBee 异构无线网络传输系统设计与实现的方法。拥有蓝牙设备的用户较普遍但蓝牙的传输范围有限，而 ZigBee 设备小而轻便，可快速大范围部署，因此当自然灾难发生时，可以将灾区分散的蓝牙设备同灾前预先部署或灾后大范围抛洒部署的 ZigBee 通信网络相结合，快速组建一个满足灾后救援人员需要的灾难应急救援网络。作为现有通信系统的补充，在基础骨干设施还没有搭建起来之前，满足灾难区域的通信需求，辅助救援工作。整个系统已在实际的蓝牙/ ZigBee 异构网络环境下进行测试，最终的实验结果表明蓝牙/ ZigBee 异构无线网络传输系统能够在蓝牙和 ZigBee 网络之间快速有效地传输数据，从而达到多个相距较远的蓝牙设备通过 ZigBee 数据链路实现通信的目的。%For the reason that the communication infrastructures are easily to be destructed when the unexpected disaster suddenly happens in the practical environment,on the basis of comprehensive analyzing the characteristics of Bluetooth and ZigBee wireless networks,pres-ent a method of the design and implementation of Bluetooth and ZigBee heterogeneous wireless networks transmission system which is based on the sudden disaster environment. According to the characteristics that users with Bluetooth devices are more common but its lim-ited transmission range of Bluetooth and ZigBee devices are small and lightweight,rapid large-scale deployed,when a sudden natural dis-aster occurs,in disaster areas quickly build a disaster emergency rescue networks meet the needs of disaster relief workers,through combi-ning the scattered Bluetooth communication networks with the ZigBee communication networks,which are pre-deployment before disas-ter or large-scale shed deployment after disaster. As a supplement of the existing communication systems before the basis backbone facili-ties have not yet been built up,this kind of rescue networks could meet the communication needs and assist the rescue work in the disaster region. The whole system has been tested in the actual Bluetooth / ZigBee heterogeneous wireless networks,and the final experimental re-sults show that the heterogeneous wireless networks transmission system designed could quickly and efficiently transfer data between Bluetooth and ZigBee networks,so as to achieve the purpose that many more Bluetooth devices far away from each other could communi-cate through ZigBee communication networks.
展开▼
